Speaker: Tetsuro Mizutani (Virginia Tech) Title: Open Charm (D) Mesons in Nuclear Matter at Finite Temperature Abstract: Spectral properties of open charm mesons (D and D bar) in finite temperature nuclear matter are studied within a self-consistent coupled-channel scheme. A broken SU(4) extended s-wave Tomozawa-Weinberg type interaction was adopted for the two-body meson-baryon interactions by means of a vector meson exchange picture. The in-medium effects included are Pauli blocking, baryon mean field binding, pion and D-meson self energies. In the DN sector two s-wave charmed baryon resonances, generated in free space, are modified in nuclear matter at finite density and temperature. The resulting D meson in-medium width spread to lower energies due to coupling to charmed baryon resonance-nucleon hole states in combination with temperature-spread nucleon Fermi sea. We discuss its possible effect in relativistic heavy ion collisions, in particular for the future experiment at FAIR (GSI).